Cylindrical sign display



FIG. 1 is a front perspective view of a cylindrical sign display, showing my design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof; and,

FIG. 5 is a left side elevational view thereof.

The varying stippled shading represents contrasting appearance. The broken line showing in the Figures illustrates environment and forms no part of the claimed design. 

CLAIM The ornamental design for a cylindrical sign display, as shown and described. 